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Finding the Fourth Proportional to 8,463.18, 12,672.90 and 8,254.20

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Solution

The fourth proportional to 8,463.18, 12,672.90 and 8,254.20 is: 12,359.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,463.18 : 12,672.90 = 8,254.20 : x
  2. Step 2: Convert to fraction form
    8,463.18/12,672.90 = 8,254.20/x
  3. Step 3: Cross multiply
    8,463.18x = 12,672.90 × 8,254.20
  4. Step 4: Simplify right side
    8,463.18x = 104,604,651.18
  5. Step 5: Solve for x
    x = 104,604,651.18/8,463.18
  6. Step 6: Final answer
    x = 12,359.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.